From the name, _sip is the symbolic name for the service and _tcp is the transport protocol. Note that the symbolic name and transport always start with an underscore.

The content of the SRV record defines a priority of 10 for both records. The first record has a weight of 60 and the second a weight of 20. The priority and weight values can be used to encourage use of certain servers over others.

The final two values in the record define the port and hostname to connect to for accessing the service.

Add an SRV record

To add an SRV record in DNSimple, you might fill in the new SRV record form like this: